Vaporizer



"A". M, .50W/LES.

vAPomlzaR. APPLICATION FILED JAN.10, '1919,

Paiemei.

,/"Mm' fr vta', va, '53415 Iii ,ffewlmwu| PATENT OFFICE..

WLLIAM M. BOWLES, OF SHWNEE, OKLAHOMA.

VAPORIZER.

y Specification of Letters Patent.

Patented Mar. 15, 1921.

Application led January 10, 1919. Serial No. 270,545.

To all whom 'Zt may concern:

Be it known that I, WILLIAM M. BowLns,

citizen ofthe United States, residing at Shawnee, in the county of -Pottawatomie' and. State of Oklahoma, have invented certain new and useful- Improvements in Yaporzers, of which the following is a specilication.

This invention relates to anv improved vaporizerifor internal combustion engines and has as its prim-ary object to provide a de-' vice. of this character adapted to heat the fuel mixture as it flows fromthe carbureter through theA engine intake manifold-so that the fuel of the mixture will thus be effectually transformed into vapor to become thoroughly mixed with the air of the mixture whereby the resultant homo enized and heated fuel supply will readily ignitewithin the engine cylinders and easy starting of the engine consequently made possible.

The invention has as a further object to :provide a device of this character rendering be eii'ectually preheated.

flow of electric current t ,it feasible to use liquid fuel of a much lower grade than is now practicable. t

A still further object of the invention-"is to providera vaporizer employing a coiled heating wire through the coils of which the fuel mixture n iust flow in its passage to the engine cylinders so that said mixture will And the invention has as a still further object to provide an arrangmentfwherein the rough the heating wire will be controlled .by-la thermostat so that after the en 'ne has becomeheated and tion of the invention.

the inrushing el mixturewill thus be heated by the heat of the engine, the flow of electric current through the heating wire will be automatically cut of.

Other and incidental objects will appear during the course of the detailed descripln the drawings wherein I have illustrated the preferre embodiment ofthe invention, and wherein similar reference characters designate corresponding parts .throughout thel several viewsz Fis showing my improved device in connection lwith a. conventional type of engine intake rel is a fragmentary-sectional vview .-'nianifold a portion 'of a conventional cari bureter ischarge lnipple being also shown, Figv 2 is a transverse sectional view taken on the line 2-2 of Fig. 1 and looking in the direction of the arrows, and

Fig 3 is a fragmentary vertical sectional view on a sli htly enlarged scale.

. ln order t at the construction, mounting and operation of my. improved vaporizer may be accurately understood I have, in they drawings, shown the device in connection with a conventional en ine intake manifold- 10 to the trunk of whic is shown attached,.

Extendingv through the body medially of the rib 13, are diametrically arranged binding osts 16 which project through the inani- 4old trunk and are received by bushings 17 insulating the posts with respect to said trunk. `The posts l16 are headed at their inner ends and threadedupon the outer ends of said posts vare clampin nuts 18 which, as will be clear, may be a )usted for tightly clamping the body within the inanifold trunk. Supported by the binding posts 16 within the body is a heating element 19 preferably formed by [a coiled` resistance wire, the wire being preferably first bent intermediate of its lends into overlapping relation and the overlapping strands thence wound to form the coil. At its ends,

the wire is equipped with terminals 20 re ceivingthe binding posts therethrou h so that these terminals will thus be ligrinly clamped against the body 12 by the heads of said posts Jfor supporting the heating coil in position. Restin upon the ledges 14 of the rib 13 of the bo y are disk .shaped mixing screens 21 which may be formed of suitable wire gauze 'and engaging beneath the shoulders 15 of the body to bear against these screens are split resilient retaining rings 22 removably clamping the screens in place. In this connection, it lwill be observed', as best shown in Fi 3 of the drawings, that the shoulders 15 s ope toward the ledges 14 'so that the ringsv 22 will tend to ride inwardly upon said shoulders and thus resiliently bind .the mixing screens at their margins against the ledges 14.

For heating the coil 19, the binding posts .16 are includedin circuit with a battery or other suitable source of electrical energy 23 and in this circuit l employ a thermostat as conventionally shown at 24. Leading from onev terminal of the thermosta-tvis a Wire 25 which is connected to one of thev binding posts 16, and leading from the other of said binding posts 1s a Wire 2G connected to one terminal of a switch conveni ltionally illustrated at 27. It will, of course,

be understood that the Wires 25 and 26 are connected with the binding posts by the clamping nuts 18 thereon. Leading Jfrom the other terminal of the switch 27 to the battery 23 is a wire 2S and leading from the battery to the terminal of the contact member of the thermostat is a Wire 29. The

. thermostat is mounted at some convenient .mostatl is, as shown in Fig. l, adapted to current will, at a -point adjacent the engine so that said thermostat Will be subjected to the heat therefrom and the contact member of this thernormally close the circuit between the Wires 25 and 29. Consequently, when the switch 27 is closed, the circuit through the binding posts 16 will be closed. As will be seen, current will thus lowthrough the Wire of the heating element 19 for heating' this element. After the heating element 19 .has become thoroughly heated by the passage `of the 35 i electric current therethrough, the engine may then be started when fuel mixture drawn up through the manifold 10 will irst be caused to'low through the lower mixins.. screen to be broken up thereby.

tually vaporized when the vapors of the fuel and the air of the mixturewill continue un through the upper mixing screen to be 1ntermingled by this screen so that the resultant homogenizedheated mixture', uponV entering the-engine cylinders, will readily vignite to thus render it easily possible to start the engine. After the engine has been started and it has become heated in such degree that the fuel mixture will be heated by the engine cylinders upon entering therein, it will then become unnecessary to supply the electric current to the device. Accordingly, the thermostat 19 is of such nature that upon being subjected to the heat of the engine, the Contact member of this thcrm The mix` ture as thus broken up will thence flow l through the coils of the heating element so that the fuel of the mixture will be effect fuel mixture and since provision is made for heating themixtureat'the ftirne the engine isl initially started, it accordingly becomes'possible, by employing my improved device, to use liquid fuels of a. much heavier grade than is now practicable. lFurthermore, the deviceis not only adapted for use in connection with automobile engines but, as will beat once apparent, will also prove particularly adapted for use in connection 7 5 with aeroplane engines which are so irequently subjected to the low temperatures of high altitudes.

Having thus described the invention, what is claimed as new is:

1. Avaporizer Jfor internal combustion engines including a tubular insulating body provided between its endsv withV spaced Iledges, a heating element positioned Within the body. in. a plane between said ledges, 35

mixing screens supported by the ledges at opposite sides of said elemenhand termina-ls for the heating element? l 2. A vaporizer for internal con'mristuin` y engines including a tubular insulating body provided between its ends with spaced y ledges therein, a heating element supported Within the body in a planel between saidv ledges, mixing screens resting, upon the ledges at opposite side-sof said e1ement,'95 means coacting with the body and clamp-ing said screens in position, and terminals for the heating element. 3.-. A vaporizer for internal" combustion engines including a tubular insulating body provided betweenY its ends with spaced ledges therein, aheating element supported A within the body in a lplane between said i ledges, mixing screens resting uponthe ment, clamping rings coaci'ingWitlrtliefbody and securing the screens in position, Yand terminals for theheating element.

`4. A vaporizer for internal 4"combustion engines including af'gtubular insulating body 1510 provided with an v internal rib forming spaced ledges Within Ytl'iebody,i the wallof the body being undercut v-adjacent said ledges to form shoulders, a heating element f .supported Within the body in a plane be- 11.11511 tween said ledges, mixing' screens resting Y upon the ledges at opposite sides of said elei ment, clamping rings ycoacting with said 'I shoulders andjbearing against! the screens for securing thefscreens in position, and terminals for the heating element.

'5..A vaporizer for internal combustion 'A'engines including a tubularbody, a heating element supported therein, mixlng screens mounted Within the lbody at opposite sides l of said element,'and means Within the body expanding thereagainst for Isecuring the screen/ in position. 6. f

vaporizer for internal combustion.

engines including a tubuiar body provided edges at opposite sides oi the heating elef 105' coast-ing with said shouldeis and bearing againstthe screens for securmg the screens m posmon, and termmals for the heatmg 10 relement.

In testimony W lereof ax my signature.

WILLIAM M.- BOWLES. [LL 3.] 

